react-native-fetch-polyfill | Exposes options to React Native | REST library
kandi X-RAY | react-native-fetch-polyfill Summary
kandi X-RAY | react-native-fetch-polyfill Summary
Fetch is a networking abstraction above XMLHttpRequest. It reflects the WHATWG fetch specification and can be found in whatwg/fetch. It is the networking library used in React Native.
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QUESTION
After upgrading expo
from: SDK 26 to SDK 32, I have the following issue when I use expo run emulator
or expo app
:
/Users/name user/project name/node_modules/expo/AppEntry.js: Cannot read property ‘1’ of undefined
AppEntry.js:
...ANSWER
Answered 2019-Apr-11 at 17:00Looking at the issue log for expo
, I see someone else had a similar issue when updating from:
SDK version 30 to SDK version 31
and the issue was related to their babel
configuration. Perhaps you're dealing with the same issue, maybe you could try the solution they suggested and see if that resolves your issue as well since you're updating from SDK version 26.
Here is what they suggested:
Install the latest version of babel-plugin-module-resolver
:
QUESTION
I am struggling with the fetch API and the implementation of flowjs inside a react-native application.
Using Nuclide, I can see that the fetch function I use to get data from a remote API is not covered by Flow...
Yes, it's no big deal if I get 99% of my code monitored but still. I want to understand what's going on.
I have installed flow-typed. I have create a stub for my fetch, I can see it in flow-typed/npm/fbjs_vx.x.x.x and here it is :
...ANSWER
Answered 2017-Aug-01 at 14:44Well... as most of the time, the answer was in the doc...
To declare a global function that should be accessible throughout your project, use the declare function syntax in a libdef file:
flow-typed/myLibDef.js
declare function foo(a: number): string; This tells Flow that any code within the project can reference the foo global function, and that the function takes one argument (a number) and it returns a string.
So I added that
declare function fetch (a: string): Promise;
to a brand new myLibDef.js file at the root of my flow-typed folder. Then surprisingly, I had to add it to my .flowConfig (in the libs section). I was pretty sure it was automatic but... well... Anyway now fetch is covered ! \0/
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